package com.sky.service.impl;


import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.Log;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.entity.Dish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import io.swagger.models.auth.In;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private SetmealMapper setmealMapper;

    @Autowired
    private DishMapper dishMapper;

    /**
     * 新增分类
     * @param categoryDTO
     */
    @Override
    @Log
    public void save(CategoryDTO categoryDTO) {
        Category category = new Category();

        //属性拷贝
        BeanUtils.copyProperties(categoryDTO, category);

        //分类状态默认为禁用状态0
        category.setStatus(StatusConstant.DISABLE);

        //设置创建时间、修改时间、创建人、修改人
       /* category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());
        category.setCreateUser(BaseContext.getCurrentId());
        category.setUpdateUser(BaseContext.getCurrentId());*/

        categoryMapper.insert(category);
    }

    /**
     * 分页查询
     * @param categoryPageQueryDTO
     * @return
     */
    @Override
    @Log
    public PageResult pageQuery(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(),
                             categoryPageQueryDTO.getPageSize());
        Page<Category> page = categoryMapper.pageQuery(categoryPageQueryDTO);
        return new PageResult(page.getTotal(),
                              page.getResult());
    }

    /**
     * 根据id删除分类
     * @param id
     */
    @Override
    @Log
    public void deleteById(Long id) {
        //查询菜品表,查看菜品是否关联了分类 关联了不能被删除
        Integer dishCount = dishMapper.countByCategoryId(id);
        if (dishCount > 0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }
        //查询套餐表,查看套餐是否关联了分类 关联了不能被删除
        Integer setmealCount = setmealMapper.countByCategoryId(id);
        if (setmealCount > 0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }
        //删除分类
        categoryMapper.deleteById(id);
    }

    /**
     * 修改分类
     * @param categoryDTO
     */
    @Override
    @Log
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        //设置修改时间,修改人
        /*category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());*/
        categoryMapper.update(category);
    }

    /**
     * 启用禁用
     * @param status
     * @param id
     */
    @Override
    @Log
    public void updateStatus(Integer status, Long id) {
        //构造对象
        Category category = Category.builder()
                .id(id)
                .status(status)
                //.updateTime(LocalDateTime.now())
                //.updateUser(BaseContext.getCurrentId())
                .build();

        //执行数据库修改操作
        categoryMapper.update(category);
    }

    /**
     * 根据类型查询分类
     * @param category
     * @return
     */
    @Override
    @Log
        public List<Category> list(Category category) {

        return categoryMapper.list(category);
    }
}
